BAALA 100PCS 22-16 Gauge Butt Connectors Crimp Wire Splice Connector, Inspection Window Wire Butt Connector, Tinned Copper Non Insulated Butt Connectors with 100PCS 3:1 Heat Shrink Tubes Marine Grade — Open-Box, 31% Off

BAALA butt splice connectors are constructed with thickened tinned copper barrels, featuring superior electrical conductivity and ultra-low circuit resistance. The tin plating effectively blocks oxidation, rust and saltwater erosion, fully meeting marine-grade usage standards. Reinforced thick-wall structure delivers stronger compression resistance and stable current transmission, perfectly fit for 22-16 AWG thin gauge delicate wires. Ergonomic optimized design solves common wiring troubles. Chamfered inlet prevents thin wire strands from fraying during insertion for smooth operation. Built-in internal wire stop limits excessive wire penetration and locks cables in fixed position, avoiding loose contacts, wire slip or poor conductivity from incorrect insertion depth. Seamless barrel supports uniform tight crimping without deformation. Equipped with an oversized observation window, you can directly view if stripped wires are fully seated inside the barrel after crimping to eliminate hidden wiring hazards. The wide window reserves sufficient space to inject extra solder for secondary reinforcement, creating vibration-resistant, shockproof ultra-firm wire splices that stay stable under long-term shaking. This all-in-one pack includes 100pcs non-insulated tinned copper butt connectors and 100pcs supporting 3:1 shrink ratio dual-wall heat shrink tubes lined with hot melt glue. As marine-grade protective tubing, the inner adhesive melts under heat to form fully waterproof, dustproof and salt-proof sealing, offering double insulation and all-around protection for wire joints in humid marine environments. Only a crimping tool and heat gun are required for quick wiring without complex processing. Widely applicable for boats, yachts, RVs, marine equipment, automotive wiring, household electrical appliances, industrial control circuits and small electronic DIY projects. Vibration and temperature resistant design performs steadily in harsh working conditions, ideal for professional electricians, repair technicians and electronic hobbyists.

Outstanding Electrical & Mechanical Performance

• Premium Conductive Performance

Boasting ultra-low electrical resistivity, these copper terminals effectively cut down heat generation during current transmission, avoid circuit overheating damage, and significantly prolong the service lifespan of connected wires.

• Superior Malleability & Crimping Stability

Made of high ductility pure copper material, the barrel deforms evenly under crimping force to grip wires tightly. It won’t crack, split or break even under heavy crimp pressure, delivering consistent, long-lasting splice effects.

• Marine-Grade Anti-Corrosion Capacity

High-purity bare copper features remarkable oxidation and corrosion resistance that meets marine industry standards. It stands up to damp, salty, chemically corrosive and other harsh extreme working environments without performance degradation.

User-Friendly Humanized Barrel Design

• Integrated internal wire stop

The built-in limiting structure prevents wires from being pushed too deep into the barrel, ensuring standardized wire placement and eliminating poor contact risks caused by improper insertion length.

• Chamfered flared inlet

Smooth rounded chamfer edges stop thin wire strands from fraying or bending when threading, letting users feed stripped cables into the connector quickly and effortlessly.

• Enlarged transparent inspection window

The widened viewing slot lets you clearly check if wires are fully seated inside the barrel after crimping. Extra solder can be injected through the window to lock cables firmly, upgrading the joint’s tensile resistance and vibration stability.

Complete Kit with 3:1 Hot Melt Adhesive Heat Shrink Tubes

This package contains 100 thickened copper butt connectors compatible with 22-16 AWG wires, matched with 100 pieces of 3:1 shrink ratio dual-wall heat shrink tubes (50 black, 50 red).BAALA heat shrink sleeves are lined with thermally activated hot melt adhesive. When heated, the inner glue melts and adheres tightly around wire joints to create an airtight, waterproof seal. It blocks penetration of moisture, chemical solvents, salt spray and corrosive particles to fully shield cable connections.

Versatile Multi-Scenario Applications

BAALA crimp butt connectors are ideal for wire rewiring, modification and maintenance work across numerous scenarios, including home appliances, automotive wiring systems, boats, yachts, marine equipment and industrial electrical installations. They are also a perfect wiring accessory for electronic enthusiasts and all kinds of DIY electrical projects.